The story revolves around a convict, who, in an act of retribution had switched his daughter with the daughter of the advocate who had him convicted wrongly. The convict, before breathing his last, confesses to the switch he had made with the two girls. The advocate locates his biological daughter Siuli (Nabanita) and brings her back to live with his family including Antara (Debjani Madak) whom he had raised as his own. The lives of both girls change immediately and in a twist of fate both girls fall for the same boy, Sam, whose parent's death and the subsequent trial had caused Antara's biological father to be wrongly convicted.